Mechanism of [beta]-actin mRNA Recognition by ZBP1
Abstract: Zipcode binding protein 1 (ZBP1) is an oncofetal RNA-binding protein that mediates the transport and local translation of β-actin mRNA by the KH3-KH4 di-domain, which is essential for neuronal development. The high-resolution structures of KH3-KH4 with their respective target sequences show that KH4 recognizes a non-canonical GGA sequence via an enlarged and dynamic hydrophobic groove, whereas KH3 binding to a core CA sequence occurs with low specificity. A data-informed kinetic simulation of the two-step binding reaction reveals that the overall reaction is driven by the second binding event and that the moderate affinities of the individual interactions favor RNA looping. Furthermore, the concentration of ZBP1, but not of the target RNA, modulates the interaction, which explains the functional significance of enhanced ZBP1 expression during embryonic development
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Cell reports. - 18, 5 (2017) , 1187-1199, ISSN: 2211-1247
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2019
- Urheber
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Nicastro, Giuseppe
Candel, Adela M.
Uhl, Michael
Oregioni, Alain
Hollingworth, David
Backofen, Rolf
Martin, Stephen R.
Ramos, Andres
- Beteiligte Personen und Organisationen
- DOI
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10.1016/j.celrep.2016.12.091
- URN
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urn:nbn:de:bsz:25-freidok-1438437
- Rechteinformation
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Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:45 MESZ
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Beteiligte
- Nicastro, Giuseppe
- Candel, Adela M.
- Uhl, Michael
- Oregioni, Alain
- Hollingworth, David
- Backofen, Rolf
- Martin, Stephen R.
- Ramos, Andres
- Albert-Ludwigs-Universität Freiburg. Professur für Bioinformatik
- Universität
Entstanden
- 2019
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